Box-nailing machine.



' BEST AVAlLABLE COF" Np. 817,509.

PATENTED APR. l0, 1906.

E. C. NORTHRUP. BOX NAILING MACHINE.

APPLICATION FILED AUG. 8. 19.04.

3 SHEETS-SHEET 1.

l l i l l l I l M fd.

BEST AVAILABLE COP.

No. 817,509. .PATBNTED APR.. 1o, 19o6.-

E. C. NOMHRUP.

' BOX NAILIN'G'MACHINB.

.APPLIOATION FILED AUG. 8. 1904.

3 SHEETS-SHEET Z.

I BEST AVAILABLE COP No. 817.509.4 i PATENTBD APR. 10, 1906,

.. E. o. NO'RTHRUP. BOX NAILING MACHINE.

APPLICATION FILED AUG. 8. 1904.

s SHEETS-SHEETS.

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BEST AvAiLABLE coP Speccation of Letters Patent.

Patented April JO, 1906.

Application filed August 8,1904- Berlal 110.219,879.

To all whom t may concern.-

e it known that-I, Elanna ,0. NoRTnRUiJ, a citizen of the United States, residing at San Jose, Santa Clara county, State of California,

have invented certain new and useful Im provements in Box-Nailing Machines; and I do hereb declare the following to be a full, clear, an exact description of the same.

MyV invention relates to the class of-ma-A chines for nailing boxes.

The object of mv invention is to provide a simple, economical, and effective machine of this class, to which end my invention consists in the novel constructions, combinations, and arrangements of parts, which I Ishall now fully describe by referenceto the accompanying drawings, in which- Figure 1 is a front elevation of my machine, the elevator being broken away to avoid confusion and certain parts being broken and in section to better illustrate them. Fig. 2 is a Iside elevation of the machine. Fig. 3 is a top detail vview,.enlarged, showing the adjustable form-bracket on the table and the means for holding the end shook. Fig. 4 is an end elevation of the same, artly in section. Fig. 5 is a back view o the same. F ig. 6 is a side elevation,

.,enlarged, of the nail-adjusterand cut-off brac cts 9 for the end shocks l() of the box to gr mechanism. Fig. 7 is a top view of the same. Fig. 8 is a side view, enlar ed, of the hammer A. Fig. .9 is a'sectiona view of the nail driver and chuck. Fig. l0 is an end view of the nail-chuck.

l is the frame of the machine.

2 is the box-table, adapted to be vertically ad'usted by suitable means to provide for diflerent heights of boxes. The table, as shown in Figs. 1, 3, and'4, has end slides 3,

laying in rame, an said table is supported and vertically adjusted by means of the screw-jacks 4, operated by an endless chain 5, passing between sprockets 6 on the jacks and actuated by a central sprocket 7, operated bya handwhcel 8, as shown clearly ml Figs. 1\'and 2.

U on the' box-table 2 are the box-form be formed. These brackets areadjustable to and from each other to provide for different lengths of boxes. This adjustment and the means for effecting it are shown in detail in Figs. 3, 4, and 5. In the table near each end is made a groove 11, in which slides a head 12, carried b a bolt 13, passing down through the foot o the bracket. By loosenides 3 inthe side timbers of thef 'se'nn in Fig.,10. pivote'd nail-holder arms 22, controlled by roo ing this bolt the bracket may be moved on the table, and by tightening upthe bolt again the bracket will be firmly clamped at the point to which it is adjusted.

'In order to hold the end shookl() to the face ofthe form-bracket 9 andto insure its position accurately, there is secured to one edge of the bracket, Figs. 3 and 4, a stopplate I4. having a spring-head 15, adapted to receive the ledge of the shook, ns seen clearly in Fig. 3, and to hold said shook and define its position. To regulate this stop for difl'erentthickne'sses of shocks, the plate. 14 is made adjustable by means of'an elongated 7o slot 16 in it, Figs. 3 and 4, through which slot thesecuring-screw' 17 passes, as seen in F ig; In Figs. 1 and 8, 1S represents one of the side shooks to be nailed to the end shocks 10.

The mechanism which includes' the nail- 75 chucks, the nail-drivers, their connectin(1 devices and heads I shall for the sake of clearness term hanimers,designating these as a whole b the. letter A, Figs. 1, 2, and 8. As shown in ig.'1, there are two of these, one 8o over each end siok of the box, though there may be as many as necessary. f iielr slanting disposition and their inclined movement re atively to a perpendicular to the plane of the part to be nailed, as well as the means for 8 5 mounting them and effecting their movement, had .better succeed the description of their construction. Referring to Figs. 8 and 9, the 'chuck-carrying head consists of two bars 19, which, by means of end bolts 20 clamp he- 9o tween them the j series of nail -chucks 21. These latter are adjustable to and from cach other by being fitted between the'hend-bars by ashdin tongue-and-groove'- connection, as seen in Fig. 9 so that the distances be- 95 tween the driven nails may be regulated to y suit the size 0f box. Each chuck consists of a hollow piece, 9, open on one side, as ithin the chuck are two springs 23, adapting them to yield to pressure. These holder-arms are disposed as si-en in Fig. 10, lat right angles, whereby they asp the nail 24 between them in the closed inner corner of the chuck. :c5

The driver-carrying headfconsists of a bar 25, lying above and parallel with the chuckcarrying head 19.` As shown in Fi 9, the

head 25 is formed with a-downwar ly-opcning T- roovc, in which are fitted and adapted r ro to be s idably adjusted thc sockets 26 o the nail-drivers 27. The nail-drivers are adjustable lengthwise -in their sockets, being set h v v is seen in Fig. 9. The adjustment of both chucks and drivers enables this alinement to be preserved'under all circumstances of regulation to suit the size of box. New it is to be especially observed that the chucks and drivers are inclined to a perpendicular to the -box-,surface to be nailed, this slant being obtained by the inclined disposition of the chucks in their head and by the inclination of the driver-sockets 26, purposely 'so constructed, so that the nail 24, held in the chuck, is presented and driven in on ka slant.

The' two heads 19 and 25 are joined by a yieldable suspension connection comprising, as shown in Fig. 8, a bolt 31 at each end, said bolt being screwed at its lower end int-o a nut 32 'on the lower head 19 and passing freely through the upper head25 and having ahead 33 above. lThus while the head 19 is sus pended from the head 25 and is lifted by the atter it will be readily seen that when the i bottom of the chucks come down to rest upon the box, as is indicated in Fig. 8, the upper head -25 will continue it s downward movey ment, thereby causing the drivers to send the In order to avoid the direct and vcontact of the lower ends of the driver-soc ets 26 with the upper ends of the chucks 21, the head 25 has end bumpers 34, which come in contact with the nuts 32 below before the sockets and chucks can come in contact. y

The upper hea'd 25 carries, by meansof a bracket 35,v Fi 9,'the telescopic extension 3,6 of the nailde iverv', tube 37, stil-ill extension vpassing downwardly into the upper end of the chuck, as isshown in the sectional chuck nails home.

V'ofvl1`ig.i'8. The nail is thus delivered .to the chuck, and the extension 36 by slipping up andfd'own o n the nail-tube 37 accompanies the;movementv of the head 25. AThe upper "head 25 isprvided with a top frame 38, in

clined as showni'nFig. 8, and said frame earri'es a spring 39, to wh1ch`is secured a yoke 40, which'embraces':across-head 41, from which thewhole hammet-Ais suspended. Thehmrners.Ajhreadjnstable to crl'rom each other to'suit'-diferentlengths of boxes by reason of the yokes 40 sliding-,on the 'crosse :need-141, 'said no'vement being effected Aby :the'igh-t and ,lfthand screw 42, (see-Fig. 1,) i

lyoke-tops. vThe screw has a cen- -hold 4.4, by means of which it can "tralwrenc I befeasilyv-operated J'Itwillzbe seenthat the cross-head 41 is in- ,"tlinedrom4 the vertical, Fig. 8, and said crossf'head is given an up-and-down vmove- Hunted on' the'cross-head and engaging nuts Q43 inthe BEST AvAiLABLE coP ment int-he plant-'ofitsinclination. 'loefleet this, its ends are mounted and adapted to slide in inclined guides 45, secured to the main frame 1, as shown in Fig. 2. Suitable means are employed to make the stroke4 The means shown comprise, as seen in Figs. l and 2, the main driving-shaft 46. the cranks 47 on the shaft en ds, the conuecting-rmls 4S from the cranks, and `the blocks 4) on the cross-Head ends, to which the rods are con`L nected at their upper ends.. 'lhe object ot'` this inclined disposition of the hammers is to drive the nails on a slant.

The nail-supplying, the distributing, the adjusting or lining-up, the cut-ntl', and the feeding mechanisms will now be described.

At the hack of the frame l is supported, Fig. 2, the initial or main hopper 50, in which operates a driving-drum5l, around which passes the elevator 52, carrying the crossbuckets 53. The elevator passes u )wa-rdl)Y to a second drum-54 onthc topof lirame l. The two drums 5l and 54 are :u iproxinmtcl) as long as the width of the machine, as is shown in Fig. l, and the elevator, a portion only of which is shown in said ligure, has a width equal to the length of the drums, and its buckets 53 have a length equall toA the width of the elevator. Secured to the top of frame l innnediately below and in front ol' the elevator as it descends from the upper drum is a cross-piece 55, Fig. l, which cnrries a number ol' distributing-chutcs 56,1-ou

tiguous and communicating above, but each tapering 'downwardly and having each its own outlet. Directly below each chute is a device for arranging the nails in lines and which I shall .term a "nail-adjuster." 'l`his adjuster'consists of a pair of parallel spaced endl ss traveling steel ribbons 57. 'lwo of these pairs are shown in Fig. 7.- llach adjus/ter lis mounted u on a pair ofterminal pulleys 58, which pu leys are mounted upon their shafts 59 in such a manner, as bv the set-screws 60, as to adapt them to be adjusted along the shaft to orfrom each other to properly regulate the space between, the

' members of each ribbon pair tosuit the s' e of nails being used.l 'lhe space between t e ribbons is wide enough to let the body of the nail through, but not its head, so that the nail will hang between thel ribbons by its head, as shown in Fig. 6. Asprin'g-controlled tightener-pulle 61, Fig. 6, acts upon the lower course et?, the ribbons to properlytension them. Under the adjuster-ribbons and occupying an arca equal to the operative area ofthe ribbons are the capacious return-ho pers 62,.Figs. l and 2, one on each' side, t ie dischargcmecks 63 of ,which'lead outw rdly downwardly and curve inwardly agai as seenY in Fig. 1, and terminate over the main or initial nail-hopper 50, as in Fig. 2. It will now be -seen that the nails supplied to the initial hopper 5() will' be picked up by and ambos BEST AVAlLABLE CP` carried up in 'the buckets 5801i the elevator 52. Reaching the top drum 54:, the inverting buckets traveling as the arrow indicates inA Fi 2 will discharge the nails into the distri uting-chutes 56. From these, the 'nails will fall in com aratively haphaizard fashion. Some will all properly in a manner to b e suspended by their heads between the pair of ribbons oieachiadjusten The remainder willv fall lfrom Athe Aadjusters into the -hop'pers 62 and will be returned by the necks 63 lto the initial hopper 56, tro be put through their travel again. i 1 .1

At'the end of each is stationary extension thereof, consisting o f a pair of arallel-spaced lates 64, 6 and 7, -W 'ch overlap the escending ribbonsl in such close proximity as to receive; the line on strips of suspended'n'ailsl f between the air of terminal pulleys, nails the [said lates continue 'to suspend,A shown in` ig. 6. These; extension-plates are supported upon "and secured adjustably by bolts or screws 65,

Fig.- 7, to a bar 66, whlchbelow the space between 'the stripsis depressed or bent down wardly, Ias shown at 67 in Fig. 1, in order to,

. allow the suspended nails to pass.

At the end jof each adjuster ,extensions al nailcuteoil. Thisconsists, asshown in Fig. 3o.v

7, of ajdisk 68, mounted rotatably to oscillate in a horizontal plane upon a vertical axis 69, Fig. 6. The disk 68 is cut away, Fig. 7, at a portion4 70- of its periphery', which said, porsecured at its lower end to t tion joins an indented portion 71 The point of a tooth 72, secured adjustably to the disk,

overlaps this indented'portion and is so disposed that 'as the dis ,oscillates :said point will pass under the adjuster extension 64 and Y entering between two of the suspended nails will cut the first one out lof line and With- *draw it from the end of said extension, forcing it into the indentation 71, which is lar e enou h to allow it to drop clear through. the isk rocks back 'again its cut-away portion will close the end of. the extension 64 against the adxancing-line o f nails. .The ad justable connection (shown in Fig. 7) bel tween the toothl 72 and the disk 168 and con-- sisting of a bol-t passing through an elongatedi 5 0 slot 73 in thetooth and a pivot-screw 74, on which the tooth may turn, enables the toothpoint to be turned farther' out or in to suit the size of'nails.

-In order to oscillate the cut-oli` disks, they are connected by a link 75, Figs.' 1 and 7, one ter'minal of which has an e e 76. A rod 77,

lle end connection of the cross-head 41, Fig. 2, is guided by a bearing 78 on the frame 1, above which bearing the end 7 9ct the rod is offset, as shown best'l in Fig. 1, and engages the link-eye 76. As the cross-head 41 moves upaml down the rod 77 moves the link 75 back and forth, ihereby actuating the' cut-ofi disks 68 and drops into .the funnel 80, and thence point downwardly is conducted b the tube 37 vto its proper chuck-through tile telescopic extersi'og of said tue. d

n J 1 81 is t c4 main riveulle on shafris. on this shafts a Iiiueyy s2, from which abelt 83, Fig; 2, exten s to a ulley. 84 on a cpunter-shaft 85 on the bac of the frame 1. On the counter-shaft is a pulley 86, fromrwhich a belt 87 extends to a pulley 88, Fig. 1 on the shaft 89 of the lower drum 51, whereby the elevator 52 is driven. Upon the axis of the up er elevator-drum 54, Flg. 1, is a pulley 90, fir) Fig.l 2, extends to a pulle 92 on the end of the shaft 59, Fig. 1, Whic carries one set of terminal ulleys 58 of the adjuster-ribbons 57, where y said ribbons aredriven. V The operation of the machine is as follows: The several adjustments are first made to conform to the size of box te be nailed. Then the end shooksvlO are placed and held totheformfbrackets 14 and one side shook 18 is laid on the end shocks.` The machine having been previously started to be in an operative condition with a nail in each chuck 21 ,the inclined hammers-now descend. W'hen the bottoms of the chucks reach the box, as shown in Fig. 8 they arel arrested; but the upper works of the-hammers continuing their descent the drivers 27 come down upon the nails24 in the chucks and dri vc them home.

.The driving is a slanting oneI and the blow,

due to the spring 39, is a cushioned one, resulting in little or no jar. cushions the Contact of the end bumpers 34 with the nuts 32, which contact, as heretofore mentioned, prevents the direct contact of the 'lower ends of the driver-sockets 26 with the upper ends of the chucks 21'. As the hammers rise the o erator turns the partial box a quarter-mun and lays a fresh side shook on the end shocks ready for a second nailing. Meanwhile upon the upstroke of the hammers other nails drop into the chucks, and the om which a beltQl,

The spring 39 also IOO IXO

ried there y, a dhriver-head, a driver carried thereby, a yieldable suspension connection x15 descending nail-lines in the tubes 37 are rehead from the( i y i. ,Og' sEsTAi/AILABLE coP het wccn the two imuts, eind contacts to limit the approach of the two heads, a reciprocatinf.: crosshead, and a spring,r connecting the cross-head with the driver-head.

' 2. ln a box-nailing machine, a hammer comprising a chuck carrying. head, nailchucks adjustablvlitted to said head, a dri\'er-carr)ing head, nail-drivers adjustably litted to said head, a )"ieldable suspension connection between the two heads, end coutacts to limit the approach of the two heads, a reciprocatingr cross-head, and a s wing,r connecting the cross-head with the driver-carriing head.

3. lu a how-nailing machine, a hammer comprisinpr a chuck-carrying head. nailchucksad 'ustably titted t'osaid head. a drivercarryiug lliead. nail-drivers adjustably -fitted to said head, slip-bolts connectingF the two heads and suspending the chuck-carrying tacts to limit thc approach of the two heads, a reciprocating crossuhead. and a spriur connecting thc cross-he'ad with the driver-carl in gr head. Y l

4. lua bo.\'uailin, `r machine, the combinar,

tion of a chuck-carrying head, nail -ehucks litted to said head. a driver-carrying head, miil-dri'vers titted to said head, slip-bolts connecting said heads and suspending;r the chuckhcad from the driver-head, en'd contacts to limit the approach of the two heads, a reciprocating cross-head, a' spring connectingthe cross-head with the driver-carrvimr head,

a l n 4 nail-tubes for supplying the nails to the chucks, and telescopic extensions on the ends of said tubes secured vto the driver-carrying head.

5. 'In a box-nailing machine, a nail-adjuster-comprisingl pairs of separated terminal pulleys, traveline, parallel, spaced ribbons mouuted'ou said ulleys, and adapted to suspend the nails )y theinheads between them, and means for relatively adjusting said pulleys to vary-the width of the space between the. ribbons.'

6.' in a box-nailing machine, a nail-ad'uster comprisingI endless,4 traveling, para lelspaced ribbons adapted to'suspend the nails by their heads betweenthem, a stationar extension'of said adjuster comprising para plates overlappinglr the travelingy tel-spaced ribbons at t eir descending bifrhts, and means for relatively and correspondingly adjusting the ribbons and the plates'to var57 the space between each, to suit the size of nails. 7. In a box-nailing machine, 4the combination of the adjuster comprisin ,the travelin parallel, adjustabl-s aced ri bons adapte to suspend Athe nal s y their heads between them-and to advance the line of suspended Y nails, the stationary adjustably-spaced extension lates to receive.-the advancing nail,

river-carrying head, end con disk at the end of the extension-plates having a peripheral portion disposed to check the nail-line, anindentationjo free the line and to receive the leading nail and permit it to drop through and a tooth disposed to cut ott' said leadingr nail from the line and direct it -int-o the indentation.`

s 8. In a bozenailingr machine, the combination 4of the adjuster com prisinflr the traveling, parallel, adjustablv-spaced ribbons adapted to suspend the nails by their heads between' them and to advance the line of suspended nails, the stationary adjustahly-spaeed extension-plates toA receive the`advaneing nail- `line., the cut-oil` consisting of the rot-ary disk at the cud of the extension-plates having a peripheral portion disposed -to check thensilinc, airiudentation to free the line and to rethrough` and a toot-h disposed to cut off said ceiv'e the nail and the tube to direct the nail to its destination.` l i.; t). In a box-nailing machine, the combina.;-

parallel,` adjustahly-spaced Vri bons adapt to suspend the. nails by their heads between them, and to advance the'line of suspended nails, the` 'stationary adj ustably spaced extension-plates to receive the 'advancing nail ,linei the cut-ofi` 'consisting of the rotary disk at the end of the extension-plates havinga )eripheral portion disposed to check the nailline, an indentation to free the line-and toreceive the leading` nail and permit it t-o dro through, and a toloth disposed to cut offsai leading naill from' the line and direct it into ceive the leading nail and permit it'te drop I loo the indentation, the funnel beneath the' in- -the chutes comprising traveling parallel ad-l justabv-spaeed ribbons adapted to suspend thenails by their heads between them and to advance the suspended nail-line, receivinghoppers below the ribbons for returnino to the initial hopper the nails which fail to e suspended between the ribbons, the stationary adjustably-spaced extension-plates to receive the advancing nail-line, the cut-ott' consisting of the rotary disk atthe end of the extensionplates having a 4peripheral ortion disposed to checkthe nail-line, an in entation to free the'line and to receive the leading nail and line. an 'the consisting of the rotary i'permit. it to drop through, and a tooth dis`- l 9.0'. tion of the adluster comprising the travfehnegdr,y 1

817,509 BEST AVALABLE CCP 5:

posed to but 0H' s-tid cadiug mail from the In Witness whereof have hereunto set my gnu and direcl, int) the ndentaltion, th hand.

unna] beueat t e iu entaton of t e cut-0 V disk adapted to receive the nail, the tubo t0 ELMER C' NORTHRUP 5 direct the mail to its destination, a chuck t0 Witnesses:

which the nail is destined, and a driver to WALTER F. VANE,

send it homen D. B. RICHARDS. 

